You will have to be compelled to follow a selected method to redeem these codes from the official web site of decision of Duty. These steps can assist you to travel through the CODM redemption method. 

• Open your decision of Duty game on the mobile and click on on the profile section. 
• Copy the UID that is gift within the Player Profile section within the prime left corner.

• Now visit the decision of Duty Mobile Redemption Center whose link is given at the tip of this text.
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• Enter your UID that you traced earlier and redeem code within the asked sections.

CODM Redeem Code

•  Enter the Captcha code to verify that you are a human.
• Now click on the Submit button.
• Open the Call of Duty mobile game again and check the in-game mailbox.

• you will see your collected rewards.